Brett Ferdock/CNN Underscored

Here at CNN Underscored, we love finding sustainable swaps that can help you reduce waste in your day-to-day life. We’ve already sung praises about bidets, Stasher bags, Swedish dishcloths and much more, but our latest love is the humble silicone baking mat.

I use these nearly every day, and they’ve helped me cut aluminum foil and parchment paper out of my life entirely. Here’s why you need them.

Once you start using silicone baking mats, you’ll wonder how you ever cooked without them. Mats are available in single packs, two-packs and even three-packs, as well as in multiple sizes and shapes.

Silicone mats like these are available in plenty of different brands, colors, shapes and sizes, but the MMmat Silicone Baking Mats in orange are the very product I’ve been using for the past two years. I store them folded in half with my cutting boards and would guess that I use them at least five times a week.

So, what’s so great about these flimsy little things? I’d say their biggest benefit is that they render single-use tinfoil and parchment paper nearly useless. Before these mats, I’d tear off a new piece of aluminum foil almost every time I’d put something in the oven. From leftover pizza to uncooked salmon to cookie dough to veggies drizzled in olive oil, every food would get a fresh sheet of foil to separate it from the baking sheet.

Kate Bratskeir/CNN Underscored

While I’m sure baking sheets are meant to be cleaned regularly, this isn’t something that happens with reliable certainty in my household. Our sheets are rife with burn stains and sometimes sticky with an oily residue even after a cleanse in the dishwasher. Cooking with the silicone baking mats, which — praise the powers that be — are dishwasher-safe, makes me confident that whatever food I’m making will not be contaminated by what’s left on the sheet. I can also be sure the mats will keep the baking sheet itself from getting dirtied.

The silicone sheets can withstand oven temperatures up to 500 degrees Fahrenheit and are safe in the freezer too. They are truly nonstick and incredibly easy to wipe clean. I haven’t tried this move yet, but some reviewers say they use the sheets to line their refrigerators — they’d definitely keep in place — to keep everything spotless.

Kate Bratskeir/CNN Underscored

Buying something new is rarely the best option when it comes to practicing sustainability. But these, I believe, are worth the purchase because they so drastically cut down the need for single-use sheet liners.

Like I mentioned earlier, I’ve had mine for two years now, and I see them lasting for many more to come. One way to ensure they last is to avoid cutting directly on top of them, since it’d be possible for a sharp knife to slice into the silicone and eventually tear a hole.

While tossing away foil is hardly our biggest environmental offense in the kitchen (and actually, aluminum foil is recyclable in many municipalities if you do it correctly), these reusable sheets are a win in our book when it comes to making small changes to cut down on waste.